21010230012023 has 24 divisors (see below), whose sum is σ = 25101606663504. Its totient is φ = 17521639027200.

The previous prime is 21010230012019. The next prime is 21010230012029. The reversal of 21010230012023 is 32021003201012.

It is not a de Polignac number, because 21010230012023 - 2² = 21010230012019 is a prime.

It is a super-2 number, since 2×21010230012023² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21010230011992 and 21010230012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010230012029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97814663 + ... + 98029223.

It is an arithmetic number, because the mean of its divisors is an integer number (1045900277646).

Almost surely, 2^{21010230012023} is an apocalyptic number.

21010230012023 is a deficient number, since it is larger than the sum of its proper divisors (4091376651481).

21010230012023 is a wasteful number, since it uses less digits than its factorization.

21010230012023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268623 (or 268616 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21010230012023 its reverse (32021003201012), we get a palindrome (53031233213035).

The spelling of 21010230012023 in words is "twenty-one trillion, ten billion, two hundred thirty million, twelve thousand, twenty-three".